66438961 (number)

66438961 is an odd 8-digits composite number following 66438960 and preceding 66438962. In scientific notation, it is written as 6.6438961 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 66363172 positive integers (up to 66438961) that are relatively prime to 66438961.

Interesting facts

Basic properties

Name

Name sixty-six million four hundred thirty-eight thousand nine hundred sixty-one

Notation

Scientific notation 6.6438961 × 10^7
Engineering notation 6.6438961 × 10^6

Prime Factorization of 66438961

Prime Factorization 887 × 74903

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 66438961
Product of the distinct prime numbers

The prime factorization of 66438961 is 887 × 74903. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 38, 40, 872, 885, 7054, 9216, 43705, 10831, 641912, 469160, 313156, 156833, 22938838, 80679363, 966048735, 865223962, 4667962383, 2578175311

Basic calculations (n = 66438961)

Multiplication

n×y
n×2 132877922
n×3 199316883
n×4 265755844
n×5 332194805

Division

n÷y
n÷2 33219480.5
n÷3 22146320.333333
n÷3 16609740.25
n÷5 13287792.2

Exponentiation

ny
n2 4414135538759521
n3 2.9327057890836E+23
n4 1.948459255454E+31
n5 1.294536084832E+39

Nth Root

y√n
2√n 8151.0098147407
3√n 405.01795581622
4√n 90.282943099684
5√n 36.684665754124

Divisors of 66438961

1, 887, 74903, 66438961

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66438960
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66438961 can be divided by 4 positive divisors. The sum of these divisors (counting 66438961) is 1, the average is 0.25.

Base conversion 66438961

Base System Value
2 Binary 11111101011100011100110001
3 Ternary 11122000110010021
4 Quaternary 3331130130301
5 Quinary 114002021321
6 Senary 10332003441
8 Octal 375343461
10 Decimal 66438961
12 Duodecimal 1a300581
16 Hexadecimal 3f5c731
20 Vigesimal 10f4h81
36 Base36 13k0mp

Cryptographic Hash Functions

md5 91a7ae1e22cd4f17865811a0cd93aad8
sha1 5bbee7e806fd09c7de531601540c2fa2dc5d22fa
sha256 3724143190e141ff1a817d7937d1f56d80d7883b51ba3516c05603bcbfd67d47
sha512 b091a3a9e1e963104e9d94c9c645ebaf2f3fdeca9df3e743cdd73155d0182f2f81eef93990cbec385987dd3003fa53fc6c3a1820a90612c27bc73b7edc23ea7b
ripemd-160 79e19eb4d1e2cda0904919dc25c9b66b3e42c832

66438961 as geometric shapes

Circle

Radius = n
Diameter 132877922
Circumference 417448303.57948
Area 1.3867415780517E+16

Sphere

Radius = n
Volume 1.2284489282834E+24
Surface area 5.5469663122066E+16
Circumference 417448303.57948

Square

Length = n
Perimeter 265755844
Area 4414135538759521
Diagonal 93958879.716177

Cube

Length = n
Surface area 26484813232557126
Volume 2.9327057890836E+23
Space diagonal 115075656.05409

Equilateral Triangle

Length = n
Perimeter 199316883
Area 1.9113767561567E+15
Altitude 57537828.027044

Triangular Pyramid

Length = n
Surface area 1.9113767561567E+15
Volume 3.4562269178101E+22
Height 31319626.572059